A database is an organized collection of data stored and accessed electronically. Databases are widely used in businesses, organizations, and institutions to manage data efficiently. A database is a collection of data organized to allow for easy retrieval, modification, and management of the data. Databases are used extensively in the field of computing for various purposes, such as online transaction processing, data warehousing, customer relationship management, and more. There are different types of databases, each with its strengths and weaknesses. In this article, we will explore the different types of databases and some of the newer types of databases that have emerged in recent years.

Relational Databases

Relational databases are the most widely used type of database. They are based on the relational model, which organizes data into tables or relations. Each table consists of rows and columns, with each row, representing a record and each column representing a field or attribute. The relations between the tables are established using keys, which are used to link the data in different tables. SQL (Structured Query Language) is the standard language used to interact with relational databases. Some of the popular relational databases are: